Questions tagged [attenuation]
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Determining the photon beam intensity to confirm the placment of an object in a iradiated chamber [closed]
A parallel bundle of monoenergetic photons is used for imaging in the configuration below. The bundle passes through a layer of water with a thickness of 1 cm, then through a zone where a cube with a ...
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Getting the spectrum of light source at high intensity (for low transmittance measurement)
I am trying to measure the transmittance spectrum through a liquid sample using a visible-NIR spectroscopy (a spectrometer connected to a fiber optics and a collimating lens at the end), with tungsten-...
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Calculation of Ultrasonic Attenuation Coefficient
Hello I have a conceptual question regarding calculating the ultrasonic attenuation coefficient for a transmitted wave within a solid material. I have seen Beer's Law used to calculate the attenuation ...
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Beer's Law ultrasound attenuation, account for spherical spreading?
I've seen Beer's Law for narrow beam written as:
$$
I = I_0 \cdot e^{-\alpha x}
$$
${\alpha }$ - attenuation coefficient (depends on absorption and scattering),
$I_0$ - initial intensity,
$I$ - ...